DSA Solutions
LeetCode problems explained in detail. Java implementations with complexity analysis.
LeetCode Activity
Live problem-solving proof.
Public LeetCode activity, recent accepted problems, and topic coverage from @hs913271.
313
Total solved
48
Current streak
92
Active days
Recent solved
Latest 5 acceptedApril 2, 2026
Maximum Amount of Money Robot Can Earn
View problem ↗
April 1, 2026
Robot Collisions
View problem ↗
March 30, 2026
Check if Strings Can be Made Equal With Operations II
View problem ↗
March 29, 2026
Check if Strings Can be Made Equal With Operations I
View problem ↗
March 18, 2026
Count Submatrices with Top-Left Element and Sum Less Than k
View problem ↗
Activity graph
Last 26 weeksLessMore
Topic coverage
Problems solved by skill areaAdvanced
Dynamic Programming61
Backtracking10
Monotonic Stack8
Divide and Conquer7
Union-Find6
Topological Sort5
Monotonic Queue4
Data Stream2
Intermediate
Hash Table69
Math49
Depth-First Search37
Breadth-First Search37
Greedy35
Tree28
Binary Search27
Binary Tree24
Fundamental
Array180
String70
Sorting40
Matrix28
Two Pointers26
Stack25
Simulation20
Linked List18